69040087 has 2 divisors, whose sum is σ = 69040088. Its totient is φ = 69040086.

The previous prime is 69040073. The next prime is 69040099. The reversal of 69040087 is 78004096.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 69040087 - 2⁷ = 69039959 is a prime.

It is a super-2 number, since 2×69040087² = 9533067225935138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (69040067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34520043 + 34520044.

It is an arithmetic number, because the mean of its divisors is an integer number (34520044).

Almost surely, 2^69040087 is an apocalyptic number.

69040087 is a deficient number, since it is larger than the sum of its proper divisors (1).

69040087 is an equidigital number, since it uses as much as digits as its factorization.

69040087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 69040087 is about 8309.0364664021. The cubic root of 69040087 is about 410.2360072904.

The spelling of 69040087 in words is "sixty-nine million, forty thousand, eighty-seven".